Bajaj Electronics — Took money at the time of purchasing mobile but now they're saying it's not mentioned

Address:

Mothe

We have purchased a REDMI not 10 pro Max mobile in September 2021, now Mobile front camera is not working so i came to nearest authorised store to repair the phone as I have insurance on it, now when I call Bajaj electronics person he is saying your insurance is not printed on bill and seems like you don't have any insurance,
I have the transactions of amounts I have paid and I want my money back or my mobile to be repaired